Thermal Magnetic Circuit Breakers

Thermal magnetic circuit breakers are devices that provide protection against overcurrent in circuits. Circuit breakers use an automatically operated electrical switch to disrupt the flow of current when an overload or short circuit is detected. Thermal magnetic circuit breakers do this using an electromagnet and bimetallic strips. 


Circuit breakers provide more sophisticated protection against overcurrent than a simple fuse. Fuses simply burn out and have to be replaced, whereas circuit breakers just need to be reset.


How do thermal magnetic circuit breakers work?

In thermal magnetic circuit breakers, there are two ways the flow of current might be detected and disrupted. In the event of a short circuit, the electromagnet rapidly trips the switch. If the overload is smaller, over a longer period of time, the bimetallic strips will instead eventually react to trip the switch. 


What are thermal magnetic circuit breakers used for?

Thermal magnetic circuit breakers are most often used in distribution boards. They make up part of the subsidiary circuits in the broader electrical supply system, protecting against overcurrent.


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Omschrijving Prijs Current Rating Number of Poles Range Voltage Rating Width Series Application Break Time Breaking Capacity at Maximum Voltage Rating Circuit Breaker Type Mounting Hole Diameter Mounting Hole Length Mounting Hole Size Mounting Hole Width
RS-stocknr. 849-5945
FabrikantnummerCBC-50HB
FabrikantCooper Bussmann
€ 9,75
Each (In a Pack of 10)
Aantal stuks
50A - - 14V dc - CBC-HB - - - - - - - -
RS-stocknr. 273-0882
Fabrikantnummer1658-G21-02-P10-15A
FabrikantETA
€ 8,96
Each
Aantal stuks
15A 1 - - 32mm 1658 - - - - - - - -
RS-stocknr. 284-6101
Fabrikantnummer4410.0106
FabrikantSchurter
€ 19,20
Each
Aantal stuks
10A 1 - 240V ac 11.5mm T12 - - - - - - - -
RS-stocknr. 782-0892
FabrikantnummerW58-XB1A4A-10
FabrikantTE Connectivity
€ 5,14
Each
Aantal stuks
10A 1 - 50 V dc, 250 V ac 0.66in W58 - - - - - - - -
RS-stocknr. 286-4020
Fabrikantnummer3120-F551-H7T1-W02D-20A
FabrikantETA
€ 22,54
Each
Aantal stuks
20A 2 - - 25mm 3120 - - - - - - - -
RS-stocknr. 416-691
FabrikantnummerAF1X0038021F2D
FabrikantCarlingswitch
€ 21,56
Each
Aantal stuks
- - - - - - - - - - - - - -
RS-stocknr. 173-9832
Fabrikantnummer4400.0052
FabrikantSchurter
€ 4,876
Each (In a Box of 100)
Aantal stuks
12A 1 - 240V ac - T11 - - - - - - - -
RS-stocknr. 729-2849
Fabrikantnummer3600-P10-Si-4A
FabrikantETA
€ 69,75
Each
Aantal stuks
4A 1 - - 11.5mm 3600 - - - - - - - -
RS-stocknr. 323-9009
FabrikantnummerGB2CD07
€ 33,22
Each
Aantal stuks
2A 1P + N - 250V ac 15mm GB2 - - 1 (dc) kA, 15 (ac) kA - - - - -
RS-stocknr. 899-3067
Fabrikantnummer2C1UL
FabrikantAltech
€ 58,00
Each
Aantal stuks
1A 2 - 480Y/277V - UL Lighting and Control Circuit Applications, Low Inrush Motors, Receptacles, Resistive Load, UL489 Application, Wiring Protection Time Delay 10 kA MCCB - - - -
RS-stocknr. 272-909
FabrikantnummerGV3P25
€ 163,60
Each
Aantal stuks
- 3 TeSys 690V ac 55mm GV3 - - 6 kA - - - - -
RS-stocknr. 284-5883
Fabrikantnummer4400.0052
FabrikantSchurter
€ 8,48
Each
Aantal stuks
12A 1 - 240V ac - T11 - - - - - - - -
RS-stocknr. 728-8645
Fabrikantnummer106-P10-000040-2A
FabrikantETA
€ 14,25
Each
Aantal stuks
2A 1 - - - 106 - - - - - - - -
RS-stocknr. 868-9049
Fabrikantnummer4430.0031
FabrikantSchurter
€ 15,143
Each (In a Pack of 20)
Aantal stuks
15A 2 - 60 V dc, 240 V ac - TA45 - - - - - - - -
RS-stocknr. 774-0027
FabrikantnummerFC6610A
€ 6,86
Each
Aantal stuks
10A - - - 11mm A-0709 - - - - - - - -
RS-stocknr. 869-2701
Fabrikantnummer4435.0052
FabrikantSchurter
€ 0,798
Each (In a Pack of 50)
Aantal stuks
- 1 - - - TA35 - - - - 2.5mm - 2.5 (Dia.)mm -
RS-stocknr. 868-8881
Fabrikantnummer4404.0038
FabrikantSchurter
€ 1,625
Each (In a Pack of 100)
Aantal stuks
15A 1 - - - T9-711 Household Appliances, HVAC, Industrial Appliances, Medical, Power Supplies, Power Tools, Uninterruptible Power Supply - 2 kA MCB 15.9mm 13.9mm 13.9 x 15.9 (Dia.)mm -
RS-stocknr. 868-9042
Fabrikantnummer4430.0034
FabrikantSchurter
€ 15,143
Each (In a Pack of 20)
Aantal stuks
16A 2 - 60 V dc, 240 V ac - TA45 - - - - - - - -
RS-stocknr. 868-8908
Fabrikantnummer4410.0655
FabrikantSchurter
€ 31,863
Each (In a Pack of 20)
Aantal stuks
1A 1 - 28 V dc, 240 V ac - T12-211 Household Appliances, Power Supplies, Power Tools, Uninterruptible Power Supply - 1 kA MCB 9.6mm 8.9mm 8.9 x 9.6 (Dia.)mm -
RS-stocknr. 868-9175
Fabrikantnummer4430.2196
FabrikantSchurter
€ 22,27
Each
Aantal stuks
20A - - 125/250V - ABD - - - MCB - - - -
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